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Pascal Editor is a full 3D building editor that runs entirely in the browser…

2026-06-23 · 08:12 UTC ·@DataChaz ·1 min read

Brief

Pascal Editor is a browser-native 3D building editor (announced 2026-06-23 by @DataChaz) that just added full color painting for walls, furniture, and whole homes. Built on React Three Fiber and WebGPU with an ECS-style core and Zustand undo/redo, it claims near-native GPU performance, supports advanced modeling workflows, is MIT-licensed, free, and has 16.9K stars.

Why it matters

Pascal Editor is a full 3D building editor that runs entirely in the browser; @DataChaz announced a major update on 2026-06-23 adding full color mode for painting walls, furniture, and entire homes.

Key details

  • The editor is built with React Three Fiber + WebGPU, uses an ECS-style architecture and Zustand state management with full undo/redo, renders on the GPU at near-native speed, and supports stacking levels, exploded views, zone selection, dragging walls, and reshaping slabs.
  • Pascal is free, open-source under the MIT license, already at 16.9K stars on its repo, and is presented as a no-cost alternative to expensive tools (e.g., 'No $50k/year Revit licenses'), reportedly shipped by independent devs using AI.
Source evidence

ARCHITECTS ARE GOING TO HATE THIS.

Someone vibe-coded a full 3D building editor that runs entirely in the browser.

No $50k/year Revit licenses.

No desktop installations.

It’s called Pascal Editor, and it just dropped a massive update adding full color mode for painting walls, furniture, and entire homes.

The underlying tech is seriously impressive:
→ Built on React Three Fiber and WebGPU
→ Renders on your GPU at near-native speed
→ ECS-style architecture for high performance
→ Zustand state management with full undo/redo
→ Next.js frontend deployed simply as a web app

You can stack levels, explode views, or solo individual floors. You can select zones, drag walls, and reshape slabs—all natively in 3D.

The crazy part?

It’s completely free and open source under an MIT license, already sitting at 16.9K stars.

Tools that used to take years to build and cost thousands to license are now being shipped by independent devs using AI.

Repo link in the 🧵↓

Video